Sicily Fault (New)
From ILSTRUC
Location
Western Christian County (F-5)
References
Nelson 1981 (p. 28), Nelson 1987b
Description
The Sicily Fault, named for the nearby village of Sicily, is known from coal test drilling, exposures in underground coal mines, and high resolution seismic surveys (M. Hopkins, ISGS, personal communication 1981). The fault strikes N25°W and is at least 6 miles (9 km) long. It is a high-angle normal fault with the northeast side downthrown as much as 15 feet (6 m) in places.
Several other faults of similar trend and type (Girard Faults) have been encountered in coal mines of Christian, Macoupin, Montgomery, and Sangamon Counties. Their length, linearity, and parallelism suggest origin in a regional stress field.
See also GIRARD FAULTS.
